Mine well drilling device
By using locking parts to threaded connections with the reaming drill bit in the mine drilling device and limiting the drill bit through the limit block, the uneven reaming and drill bit damage caused by the loose threaded connection of the existing reaming drill bit is solved, and stable connection and uniform reaming are achieved.
Patent Information
- Application Number
- CN202422041321.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-22
AI Technical Summary
During construction, the existing reaming drill bits are unevenly reamed and the drill bits are easily damaged due to loose thread connections.
A mine drilling device is designed. By using a locking member between the main drill bit and the reaming drill bit, the locking member is threadedly connected to the reaming drill bit, and the limit of the reaming drill bit and the main drill bit is achieved through a limit block to prevent rotation.
The stable connection between the reaming drill bit and the main drill bit is achieved, avoiding the problem of loose locking head, and ensuring the uniformity of the reaming and the stability of the drill bit.
Smart Images
Figure CN222962806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine drilling, in particular to a mine drilling device. Background Art
[0002] The reaming bit is a drilling tool for reaming the processed hole in machining. During construction, it is usually necessary to drill processed holes with different diameters, and at the same time supply dust removal water during the drilling process to reduce the phenomenon of damage caused by the high temperature of the drill bit due to friction. In order to facilitate the hierarchical reaming construction and the replacement of the drill bit, various reaming bits have appeared on the market. The existing reaming bit only has two drill bits with different sizes, upper and lower. For reaming bits with different sizes, different models of drill bits need to be replaced. The existing upper and lower drill bits are connected by threads, and the drill bit is extremely easy to loosen during the reaming process, resulting in uneven reaming and easy damage to the drill bit. Content of the Utility Model
[0003] In view of this, the purpose of the present utility model is to provide a mine drilling device to solve some or all of the technical problems in the background art.
[0004] Based on the above purpose, the present utility model provides a mine drilling device, including:
[0005] A main drill bit, including a blade part and a mounting part connected to each other, and jacks are provided on the blade part;
[0006] A reaming bit, a sleeve hole is provided on the reaming bit, the reaming bit is sleeved on the mounting part through the sleeve hole, a limiting block is provided at the end of the reaming bit, and the limiting block is inserted into the jack;
[0007] A locking member, the locking member is sleeved on the mounting part, one end of the locking member extends into the sleeve hole of the reaming bit and gradually locks towards the outer wall of the mounting part along the inner wall of the sleeve hole, and the part of the locking member located in the sleeve hole is threadedly connected to the reaming bit.
[0008] Optionally, a mounting hole is provided at the end of the mounting part, and a drill pipe is provided in the mounting hole.
[0009] Optionally, the sleeve hole includes a first hole, the diameter of the first hole matches the outer wall diameter of the mounting part, and the inner wall of the first hole fits with the outer wall of the mounting part.
[0010] Optionally, the sleeve hole further includes a second hole, the second hole is communicated with the first hole, and the diameter of the end of the second hole far from the first hole gradually increases.
[0011] Optionally, the socket hole further includes a third hole that communicates with the second hole. The diameter of the third hole is larger than the diameter of the large opening end of the second hole. An internal thread is provided in the third hole, and an external thread that mates with the internal thread is provided on the outer wall of the locking member.
[0012] Optionally, the locking member includes a first boss, a second boss, and a locking portion that are connected in sequence. The outer diameter of the first boss matches the outer wall diameter of the reaming bit. The outer diameter of the second boss matches the inner diameter of the third hole. The outer wall of the locking portion matches the inner wall of the second hole. An external thread is provided on the outer wall of the second boss, and an internal thread that mates with the external thread is provided on the inner wall of the third hole.
[0013] Optionally, the locking portion is divided into a plurality of clamping blocks via a plurality of notches. A clamping rod is rotatably installed on each clamping block, and the plurality of clamping rods are arranged around the installation portion.
[0014] Optionally, a serpentine slideway is provided on the inner wall of the jacking hole, and a limiting post that slides within the serpentine slideway is provided on the side wall of the limiting block.
[0015] Optionally, a reaming blade is provided at one end of the reaming bit where the limiting block is located, and the diameter of the reaming blade is larger than the blade portion of the main bit.
[0016] As can be seen from the above, for a mine drilling device provided by the present utility model, the main bit includes a blade portion and an installation portion. The reaming bit is sleeved on the installation portion and is locked by a locking member. The locking member is threadedly connected to the reaming bit, enabling the disassembly of the reaming bit and the main bit, and different reaming bits with different diameters can be replaced according to different requirements. A jacking hole is provided at the end of the blade portion, and a limiting block that mates with the jacking hole is provided at the end of the reaming bit. When the limiting block is inserted into the jacking hole, the reaming bit and the main bit can be limited, preventing the reaming bit and the main bit from rotating and avoiding the problem of loosening of the locking head caused by the rotation of the reaming bit and the main bit. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the present utility model or related technologies, the following will briefly introduce the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings in the following description are only embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 Structural schematic diagram of a mine drilling device according to an embodiment of the present utility model;
[0019] Figure 2 Cross-sectional structural schematic diagram of a mine drilling device according to an embodiment of the present utility model;
[0020] Figure 3 Explosion schematic of a mine drilling device according to an embodiment of the present utility model Figure 1 ;
[0021] Figure 4 Explosion schematic of a mine drilling device according to an embodiment of the present utility model Figure 2 ;
[0022] Figure 5 Schematic diagram of the internal structure of the jack according to an embodiment of the present utility model.
[0023] In the drawings:
[0024] 1. Main drill bit; 2. Reaming drill bit; 3. Locking member; 11. Blade portion; 12. Mounting portion; 120. Mounting hole; 21. Limiting block; 211. Limiting post; 22. Sleeve hole; 31. Locking portion; 32. Clamping rod; 221. First hole; 222. Second hole; 223. Third hole; 30. First boss; 301. Second boss; 111. Jack; 112. Serpentine slideway. Detailed implementation manners
[0025] To make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the following further describes the present utility model in detail with reference to specific embodiments and the accompanying drawings.
[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar terms used in the embodiments of the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0027] The following describes specific embodiments of the present utility model with reference to the accompanying drawings.
[0028] As Figure 1 and Figure 2 shown, the present utility model provides a mine drilling device, including:
[0029] The main drill bit 1 includes a blade part 11 and a mounting part 12 which are connected to each other. A jack 111 is provided on the blade part 11;
[0030] The reaming drill bit 2 is provided with a socket hole 22. The reaming drill bit 2 is sleeved on the mounting part 12 through the socket hole 22. A limiting block 21 is provided at the end of the reaming drill bit 2, and the limiting block 21 is inserted into the jack 111;
[0031] The locking member 3 is sleeved on the mounting part 12. One end of the locking member 3 extends into the socket hole 22 of the reaming drill bit 2 and gradually locks towards the outer wall of the mounting part 12 along the inner wall of the socket hole 22. The part of the locking member 3 located in the socket hole 22 is threadedly connected to the reaming drill bit 2.
[0032] Specifically, the main drill bit 1 includes a blade part 11 and a mounting part 12. The reaming drill bit 2 is sleeved on the mounting part 12 and locked by the locking member 3. The locking member 3 is threadedly connected to the reaming drill bit 2, so that the reaming drill bit 2 can be disassembled from the main drill bit 1, and reaming drill bits 2 with different diameters can be replaced according to different requirements. A jack 111 is provided at the end of the blade part 11, and a limiting block 21 matching the jack 111 is provided at the end of the reaming drill bit 2. When the limiting block 21 is inserted into the jack 111, the reaming drill bit 2 and the main drill bit 1 can be limited, preventing the reaming drill bit 2 and the main drill bit 1 from rotating and avoiding the problem of loosening of the locking head caused by the rotation of the reaming drill bit 2 and the main drill bit 1.
[0033] In some embodiments, as Figure 2 shown, a mounting hole 120 is provided at the end of the mounting part 12, and a drill pipe is provided in the mounting hole 120.
[0034] Specifically, threads are provided in the mounting hole 120, and the drill pipe is threadedly connected to the mounting hole 120.
[0035] In some embodiments, as Figure 2 shown, the socket hole 22 includes a first hole 221, the diameter of the first hole 221 matches the outer wall diameter of the mounting part 12, and the inner wall of the first hole 221 is in contact with the outer wall of the mounting part 12.
[0036] Furthermore, the socket hole 22 further includes a second hole 222. The second hole 222 is communicated with the first hole 221, and the diameter of one end of the second hole 222 away from the first hole 221 gradually increases.
[0037] Further, the socket hole 22 further includes a third hole 223, the third hole 223 communicates with the second hole 222, the diameter of the third hole 223 is larger than the diameter of the large opening end of the second hole 222, an internal thread is provided in the third hole 223, and an external thread matching the internal thread is provided on the outer wall of the locking member 3.
[0038] Specifically, the socket hole 22 of the reaming drill bit 2 includes a first hole 221, a second hole 222 and a third hole 223 that communicate with each other. Among them, the inside of the first hole 221 fits against the outer wall of the mounting portion 12. In this way, the reaming drill bit 2 can be more stably connected to the main drill bit 1. The second hole 222 gradually narrows towards the first hole 221. In this way, it helps to lock the locking member 3 and the mounting portion 12, making the connection between the reaming drill bit 2 and the main drill bit 1 more stable. The diameter of the third hole 223 is larger than the diameter of the second hole 222, and an internal thread is provided in the third hole 223. The locking member 3 is threadedly connected to the third hole 223. In this way, the locking member 3 and the reaming drill bit 2 can be stably installed.
[0039] In some embodiments, as Figure 4 shown, the locking member 3 includes a first boss 30, a second boss 301 and a locking portion 31 connected in sequence. The outer diameter of the first boss 30 matches the outer diameter of the outer wall of the reaming drill bit 2, the outer diameter of the second boss 301 matches the inner diameter of the third hole 223, the outer wall of the locking portion 31 matches the inner wall of the second hole 222, an external thread is provided on the outer wall of the second boss 301, and an internal thread matching the external thread is provided on the inner wall of the third hole 223.
[0040] Specifically, the socket hole 22 includes a first hole 221, a second hole 222 and a third hole 223 that communicate with each other from top to bottom. The diameter of the first hole 221 matches the outer diameter of the outer wall of the mounting portion 12. The first hole 221 is used to fit against the outer wall of the mounting portion 12, so that the reaming drill bit 2 is more stably sleeved on the mounting portion 12. The diameter of one end of the second hole 222 away from the first hole 221 gradually increases, that is, one end of the second hole 222 is gradually locked, so that the locking portion 31 on the locking member 3 can be gradually locked to realize the locking between the locking member 3 and the mounting portion 12. The diameter of the third hole 223 is larger than the diameter of the large opening end of the second hole 222 and is used for threaded connection with the locking member 3. In this way, the locking member 3 can be both threadedly connected to the locking member 3 and locked to the mounting portion 12, making the installation of the reaming drill bit 2 more stable. And the locking member 3 is threadedly connected to the reaming drill bit 2, which is more convenient for the disassembly of the reaming drill bit 2.
[0041] In some embodiments, as Figures 2-4 shown, the locking portion 31 is divided into a plurality of clamping blocks through a plurality of notches, and a clamping rod 32 is rotatably installed on each clamping block, and the plurality of clamping rods 32 are arranged around the mounting portion 12.
[0042] Specifically, the outer wall of the locking portion 31 matches the second hole 222. The cross-section of the second hole 222 is trapezoidal with a wider upper part and a narrower lower part. Therefore, when the locking member 3 is thread-adjusted with the third hole 223 of the reaming bit 2, the locking portion 31 can be gradually contracted, and the clamping block 32 is pushed to clamp the mounting portion 12, so as to lock the reaming bit 2 on the mounting portion 12 through the locking member 3.
[0043] In some embodiments, as Figure 5 shown, a serpentine slideway 112 is provided on the inner wall of the jack 111, and a limiting post 211 that slides within the serpentine slideway 112 is provided on the side wall of the limiting block 21.
[0044] Specifically, when the limiting block 21 is inserted into the jack 111, the limiting post 211 enters the serpentine slideway 112. By rotating left and right, the limiting post 211 slides to the bottom of the serpentine slideway 112. At this time, the limiting block 21 is also inserted into the bottom of the jack 111. Then, the reaming bit 2 is locked on the mounting portion 12 of the main bit 1 through the locking member 3, avoiding the problem that the reaming bit 2 rotates around the main bit 1 and causes the reaming bit 2 to become loose.
[0045] In some embodiments, as Figure 1 and Figure 2 shown, a reaming blade is provided at one end of the reaming bit 2 where the limiting block 21 is provided, and the diameter of the reaming blade is larger than the blade portion 11 of the main bit 1.
[0046] Specifically, the diameter of the reaming blade portion 11 of the reaming bit 2 can be twice the diameter of the blade portion 11 of the main bit 1.
[0047] The specific use process of the present utility model is as follows:
[0048] The present utility model may include multiple reaming bits 2. Specifically, the structure is the same as the connection method between the main bit 1 and the reaming bit 2. In the present utility model, only the connection method between one reaming bit 2 and the main bit 1 is taken as an example.
[0049] After sleeving the reaming bit 2 on the mounting portion 12, insert the limiting block 21 of the reaming bit 2 into the jack 111 of the main bit 1, and make the limiting post 211 on the limiting block 21 slide into the bottom along the serpentine slideway 112 of the jack 111. Then install the locking member 3 on the top of the reaming bit 2. The locking member 3 is threadedly connected to the top of the reaming bit 2, and the outer wall of the end of the locking member 3 is gradually narrowed downward. During the process of tightening the locking member 3 and the reaming bit 2, the locking portion 31 on the locking member 3 gradually contracts, and the clamping rod located on the locking portion 31 clamps the mounting portion 12, so as to realize the fixed connection between the reaming bit 2 and the main bit 1. According to the actual situation, multiple reaming bits 2 can be installed. Then install the assembled bit on the drill pipe. The specifically assembled bit can use the existing connection method between the bit and the drill pipe, and is not specifically limited in the present invention. Exemplarily, the assembled bit can be threadedly connected to the drill pipe.
[0050] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the embodiments of the present invention as described above, and they are not provided in detail for the sake of brevity.
[0051] Although the present invention has been described in connection with specific embodiments thereof, many alternatives, modifications, and variations to these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. For example, other memory architectures can use the embodiments discussed.
[0052] Embodiments of the present invention are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention shall be included within the protection scope of the present invention.
Claims
1. A mining drilling device, characterized in that: include: The main drill bit (1) comprises a blade portion (11) and a mounting portion (12) connected to each other, wherein the blade portion (11) is provided with an insertion hole (111); A reaming drill bit (2), wherein a sleeve hole (22) is provided on the reaming drill bit (2), and the reaming drill bit (2) is sleeved on the mounting portion (12) through the sleeve hole (22); a limit block (21) is provided at the end of the reaming drill bit (2), and the limit block (21) is inserted into the insertion hole (111); A locking piece (3), wherein the locking piece (3) is sleeved on the mounting portion (12), one end of the locking piece (3) extends to the inside of the sleeve hole (22) of the reaming drill bit (2), and is gradually locked toward the outer wall of the mounting portion (12) along the inner wall of the sleeve hole (22), and the portion of the locking piece (3) located in the sleeve hole (22) is threadedly connected to the reaming drill bit (2).
2. A mining drilling device according to claim 1, characterized in that: An installation hole (120) is provided at the end of the installation portion (12), and a drill rod is provided in the installation hole (120).
3. A mining drilling device according to claim 2, characterized in that: The sleeve hole (22) comprises a first hole (221), the diameter of the first hole (221) matches the diameter of the outer wall of the mounting portion (12), and the inner wall of the first hole (221) fits the outer wall of the mounting portion (12).
4. A mining drilling device according to claim 3, characterized in that: The sleeve hole (22) further comprises a second hole (222), the second hole (222) being connected to the first hole (221), and the diameter of the second hole (222) at one end away from the first hole (221) gradually increases.
5. A mining drilling device according to claim 4, characterized in that: The sleeve hole (22) further comprises a third hole (223), the third hole (223) being in communication with the second hole (222), the diameter of the third hole (223) being larger than the diameter of the large opening end of the second hole (222), the third hole (223) being provided with an internal thread, and the outer wall of the locking member (3) being provided with an external thread matching the internal thread.
6. A mining drilling device according to claim 5, characterized in that: The locking member (3) comprises a first boss (30), a second boss (301) and a locking portion (31) which are connected in sequence, wherein the outer diameter of the first boss (30) matches the outer wall diameter of the reaming drill bit (2), the outer diameter of the second boss (301) matches the inner diameter of the third hole (223), the outer wall of the locking portion (31) matches the inner wall of the second hole (222), the outer wall of the second boss (301) is provided with an external thread, and the inner wall of the third hole (223) is provided with an internal thread matching the external thread.
7. A mining drilling device according to claim 6, characterized in that: The locking portion (31) is divided into a plurality of clamping blocks via a plurality of notches, a clamping rod (32) is rotatably mounted on each of the clamping blocks, and a plurality of the clamping rods (32) are arranged around the mounting portion (12).
8. A mining drilling device according to claim 1, characterized in that: The inner wall of the insertion hole (111) is provided with a serpentine slideway (112), and the side wall of the limiting block (21) is provided with a limiting column (211) which slides in the serpentine slideway (112).
9. A mining drilling device according to claim 1, characterized in that: The reaming drill bit (2) is provided with a reaming blade at one end of a limit block (21), and the diameter of the reaming blade is larger than the blade portion (11) of the main drill bit (1).